RAB LOS800 Smart Switch 800 Watts, 3 Wire Motion Sensor Light SwitchReplace your light switch with a RAB LOS800W (white) or RAB LOS800I (ivory) Occupancy Sensor just like the sensor light switch in high end office buildings at a fraction of the cost. Turns lights on and off automatically when rooms are unoccupied to save energy. Fits standard decorator wall plates. Full 180° view covers 1000 sq. ft. Works with electronic ballasts. Can be wired in parallel. LED indicator, wall plate included. Can also be used as a ceiling sensor. Must have hot, common & ground wires in box.